Unknown Greek/Roman provincial coin 3 [opgelost]

Weight is 2.16 grams. Diameter is about 14mm. any help would be greatly appreciated!

The legend on the reverse is ΤΩΝ ΠΤΟΛΕΜΑΙ(ΩΝ) which means “(coin) of the Ptolemies”. 

I don't know why it's in the plural and not in the singular.

EDIT — Wait. Probably one of the cities named Ptolemais, so the legend means “(coin) of the citizens of Ptolemais”.

I'm shocked that there doesn't seem to be any Ptolemais coin on wildwinds.com.